/Engine/Plugins/Importers/USDImporter/Source/USDUtilities/Public/USDAttributeUtils.h
Removes the "Muted" CustomData entry from the attribute at the stage's UE state sublayer, letting it be animated when loaded into UE
namespace UsdUtils { bool UsdUtils::UnmuteAttribute ( [UE::FUsdAttribute](API\Plugins\UnrealUSDWrapper\UsdWrappers\FUsdAttribute) & Attribute, const [UE::FUsdStage](API\Plugins\UnrealUSDWrapper\UsdWrappers\FUsdStage) & Stage ) }